SOLUTION: I need help simplifying this equation y= (x-8)/((cuberootx) -2) Thank you :)

Algebra ->  Radicals -> SOLUTION: I need help simplifying this equation y= (x-8)/((cuberootx) -2) Thank you :)      Log On


   

Question 1023476: I need help simplifying this equation
y= (x-8)/((cuberootx) -2)
Thank you :)
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
I need help simplifying this equation
y= (x-8)/((cuberootx) -2)
--------
y+=+%28x-8%29%2F%28root%283%2Cx%29+-+2%29
The object is to rationalize the DEN.
Use the fact that a%5E3+-+b%5E3+=+%28a-b%29%2A%28a%5E2+%2B+ab+%2B+b%5E2%29
-->
y+=+%28x-8%29%2A%28%28root%283%2Cx%29%29%5E2+%2B+2root%283%2Cx%29+%2B+4%29%2F%28x-8%29
y+=+root%283%2Cx%5E2%29+%2B+2root%283%2Cx%29+%2B+4
==================
Equations are usually solved, or the zeroes are found.